318 Build Combo Critique

I have a very similar engine in 360 form. Same cam duration/lift, mag heads, .040 quench, similar compression, headers, exhaust. Runs very strong...even in a truck with bigger tires and high gears. I live at altitude and I bet I lose 50-60 hp from that alone. So I can imagine what your 318 is going to act like. You'll enjoy it.